Sharp UX-B700 Service Manual page 43

• MISSING NOZZLES (RESULT OF CHECK PATTERN
OR CLEAN NOZZLES)
CLEAN NOZZLES
NG
REPLACE ANOTHER CARTRIDGE
NG
MISSING MANY NOZZLES
YES
CHECK THE SOLDER
IC1, CNHEAD1,2 (PRINTER PWB)
OK
CHECK +11.82V
OK
CHECK +30V
OK
CHECK +3.3V
OK
REPLACE IC1 OR IC3
CHECK IC AND CONNECTOR
NO
CORRECT SOLDER
NG
CHECK RESISTANCE BETWEEN
+11.82V AND GND, SHORT OR NOT.
NG
NO
CHECK +11.82V PATTERN
CHECK RESISTANCE BETWEEN
+30V AND GND, SHORT OR NOT.
NG
NO
CHECK +30V PATTERN
CHECK RESISTANCE BETWEEN
+3.3V AND GND, SHORT OR NOT.
NG
NO
CHECK +3.3V PATTERN
3 – 5
UX-B700U
FO-B1600U
SHORT
REPLACE PRINTER PWB
SHORT
REPLACE PRINTER PWB
SHORT
REPLACE PRINTER PWB